Can Britain's Common Toads Be Saved from Traffic and Population Collapse?
It's a Friday evening at 7:30, but instead of heading to the pub or relaxing at home, I've taken a train to a town in Wiltshire to join volunteers from a amphibian rescue group. These dedicated individuals give up their nights to safeguard the local toad population.
A Worrying Decline in Numbers
The common toad is becoming increasingly rare. A recent study led by an wildlife conservation group revealed that the UK toad population have almost halved since 1985. Seeing a species that has been a stalwart of the British countryside in decrease is described as "concerning" by experts. Toads "don't require very specific conditions" and "ought to live successfully in most of areas in the UK," so if even they are not managing to survive, "it kind of suggests that things are not as they should be."
Toad populations across the UK have declined by almost 50% since the 1980s
The Threat from Traffic
Though the research didn't examine the reasons for the drop, traffic certainly plays a part. Calculations suggest that 20 tons of toads are killed on UK roads annually – in other words, hundreds of thousands. Unlike frogs, which would probably be happy to mate "with just a bucket of water," toads prefer big bodies of water. Their capacity to stay out of water for more time than frogs allows they can journey farther to find them – often hundreds of metres. They tend to follow their traditional paths – it's common for mature amphibians to return to their birth pond to mate.
Migration Habits
Fittingly, the first toads start their journey for a partner around Valentine's day, but others travel as far as spring, until it gets dark and travelling through the night. During that time, toads start moving from wherever they have been hibernating "all pretty much at the same time."
One volunteer, who grew up in the area and has been trying to protect its amphibians since he was a boy, notes that "Their sole purpose: to go and mate." If their route crosses a road, they could be killed by traffic, and that mating period would never happen – stopping a next generation of toads from being born.
Rescue Groups Throughout the UK
Finding hundreds of dead toads on nearby streets "inherently strikes a chord with people," and has led to the formation of toad patrols across the UK – hundreds of organizations are currently registered with a countrywide program. These groups pick up toads and transport them over streets in buckets, as well as recording the number of toads they encounter and lobbying for other safety solutions, such as blocked roads and amphibian passages.
Patrols tend to operate during the migration season, when amphibian movements are more regular. However, this means they can miss numbers of young toads, which, having existed as spawn and then tadpoles, exit their ponds over an irregular timetable in late summer. Because of their size – just one or two centimetres wide – "they can get obliterated by car traffic." And as being run over "basically turns them into mush," it's harder to get data on them. At least when mature amphibians are lost, their carcasses can be tallied.
Year-Round Work
In contrast to most patrols, a specific volunteer group, who are in their eighth year of operating, go out year-round – not every night, but whenever conditions are warm and wet, or if a member has reported about a amphibian spotting in their messaging app. When I request to accompany them on duty, they admit it is "not a toady night" – winter dormancy has begun and it's been a dry day – but several of the helpers willingly accept to patrol their area with me and search for any toads. "Should anyone can find any toads tonight, those two will find one," says the patrol manager, pointing to her teenage child and the longtime volunteer. After for 120 minutes without a single toad sighting, and now they have climbed over a wire barrier to check under some wood.
Community Involvement
The mother and son joined the patrol a while back. The teenager adores all things wildlife and has an ambition to become a environmentalist, so his parent started to look for activities they could do together to help native animals. Now she loves it as much as he does, the 41-year-old entrepreneur explains – so when the group was seeking a fresh coordinator recently, she decided to step up.
The youth, too, has played an important role in the group. A video he created, imploring the municipal authority to close a road through a protected area during breeding time, swung the decision the group's way. After a twelve months of campaigning, the authority agreed to an "access-only" rule between evening and morning from late winter through to April. The majority of motorists respected and avoided the route.
Additional Species and Challenges
Several cars go by when I'm out on duty and we find some casualties as a consequence – no amphibians, but three squashed newts. We spot one live amphibian as well, and the youngster is especially excited to see a daddy longlegs, which dances in his hands. Yet in spite of the team's hardest attempts to show me a toad, the local population has clearly settled down for the colder months. It seems that I couldn't have found any more luck elsewhere in the country – all the rescue teams I reach out to explain that it's very difficult at this season.
This team anticipates assisting around ten thousand mature toads over the street
A message I get from a different helper, who has generously taken the trouble to look for toads in a famous site, considered the biggest tracked toad population in the UK, arrives in my inbox with the title: "No toads." However, in February and March, he informs me, the team expects to help approximately 10,000 adult toads across the road.
Impact and Challenges
What level of impact can these groups truly achieve? "The fact that people are performing this regularly on chilly, wet and miserable evenings is remarkable," notes an researcher. "That's something that very much deserves recognition." However, while rescue teams are able to reduce the drop, they can't stop it completely – partly since traffic is not the only threat.
Additional Threats
The climate crisis has meant longer periods of drought, which cause the poor environment for some of the animals that toads eat, such as worms and slugs, while warmer ponds have caused an increase of blue-green algae, which can be harmful to toads. Milder winters also lead toads to wake up from their dormancy more frequently, interfering with the resource preservation crucial to their existence. Loss of environment – especially the loss of large ponds – is another menace.
Experts are "always a bit worried about putting too much of a utilitarian spin on wildlife," but "There is a big value in just their presence." But toads do have an important role in the ecosystem, eating pretty much any small creatures or tiny organisms they can swallow and in turn sustaining a variety of birds and mammals, such as wildlife. Improving situations for toads – ie creating more ponds, protecting forests and constructing amphibian passages – "we'll improve them for a whole bunch of other species."
Historical Importance
Another reason to work to preserve toads present is their "historical significance," notes an specialist. Myths and folklore around toads date back {centuries|hundred